[ 1468.774353] hub 1-0:1.0: port 2 disabled by hub (EMI?), re-enabling...
[ 1468.789611] usb 1-2: USB disconnect, device number 2
[ 1468.789642] usb 1-2.1: USB disconnect, device number 3
[ 1468.795959] phy0 -> rt2x00usb_vendor_request: Error - Vendor Request 0x07 failed for offset 0x302c with error -19.
[ 1468.827301] smsc95xx 1-2.1:1.0: eth0: unregister 'smsc95xx' usb-ehci-omap.0-2.1, smsc95xx USB 2.0 Ethernet
[ 1468.854248] usb 1-2.3: USB disconnect, device number 4
[ 1468.868530] wlan0: deauthenticating from 00:80:48:6c:b4:a3 by local choice (reason=3)
[ 1468.886993] usb 1-2.4: USB disconnect, device number 5
[ 1468.890563] cfg80211: All devices are disconnected, going to restore regulatory settings
[ 1468.890625] cfg80211: Restoring regulatory settings
[ 1468.914764] cfg80211: Calling CRDA for country: US
[ 1471.051727] ehci-omap ehci-omap.0: force halt; handshake fa064814 0000c000 00000000 -> -110
ubuntu@omap:/etc$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub